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Articles on Google Scholar by:

Hadgu G

Kassa B

Articles on PubMed by:

Hadgu G

Kassa B


ajar ban

Research Article

Academia Journal of Agricultural Research 1(6):  088-100, June 2013

DOI: http://dx.doi.org/10.15413/ajar.2013.0117

ISSN: 2315-7720

2013 Academia Publishing

 

 

Abstract

 

Trend and variability of rainfall in Tigray, Northern Ethiopia: Analysis of meteorological data and farmers’ perception

 

Accepted 11th May, 2013

 

Gebre Hadgu1*, Kindie Tesfaye2, Girma Mamo3 and Belay Kassa4

1Haramaya University, College of Agriculture and Environmental Science, P. O. Box: 138 Dire Dawa, Ethiopia.
2International Maize and Wheat Improvement Center (CIMMYT), Addis Ababa, Ethiopia.
3Ethiopian Institute of Agricultural Research, Melkassa Agricultural Research Center, Nazareth, Ethiopia.
4Haramaya University, College of Business and Economics, P .O. Box: 138 Dire Dawa, Ethiopia.

*Corresponding author. E-mail: G.hadgu27@gmail.com; Tel: +251 914741417.

 

Rainfall is the most important but variable climatic parameter in the semiarid tropics. In this study, the trend and variability of rainfall were compared with the perception of farmers in northern Ethiopia. Daily rainfall data obtained from five meteorological stations located in different agroecological zones were used to determine trends in annual and seasonal totals, onset and cessation dates, length of growing period (LGP) and dry spell length. Sen’s estimator and Mann-Kendall's statistical tests were used for trend detection. Two hundred fifty three farmers from three administrative areas (districts) that are close to the meteorological stations were interviewed in order to investigate farmers' perception on rainfall trend and variability in the study area. The results indicate that rainfall in the region is highly variable with a non-significant trend in both annual and seasonal totals for all stations. However, trends of rainfall events such as onset date, cessation date, LGP, and dry spell length were changed significantly in most stations, which agreed with the farmers’ perception. Moreover, most stations experienced drought conditions in the last decade. The results suggest the need for designing appropriate agronomic and water management strategies to offset the negative impacts of rainfall variability in the study area.

Key words: Rainfall, rainfall trend, rainfall variability, onset, length of growing period.

 

 | Full Text (PDF) | 775 KB |     

 

Cite this article as:
Gebre Hadgu, Kindie Tesfaye, Girma Mamo and Belay Kassa (2013). Trend and variability of rainfall in Tigray, Northern Ethiopia: Analysis of meteorological data and farmers’ perception. Acad. J. Agric. Res. 1(6): 088-100.


This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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